After the first public vote of the 20th series the 59-year-old Scot found herself up against singer Matt Goss in the dance-off, before the judges chose to send her home.
The judges’ scores this week were added to those from last week, and were then combined with the results of the viewers’ votes to decide the lowest-scoring two couples.
After finding herself in the bottom two, Adams performed her routine with partner Kai Widdrington for the second time after Saturday evening’s live show.
The pair danced the Charleston to Music! Music! Music! before Bros singer Goss, 54, took to the dancefloor with his partner Nadiya Bychkova to perform their samba to Night Fever by the Bee Gees in a bid to impress the judges and remain in the competition.
After both the couples had danced a second time, the judging panel delivered their verdicts.
Craig Revel Horwood chose to save Goss and Bychkova, saying: “Well the couple for me, that I considered danced the best on the night, and the couple I would like to save is Matt and Nadiya.”
Motsi Mabuse also opted to save Goss and Bychkova and said: “Well that was so close, both couples made mistakes. I feel like they were on the same level, but one couple was a little bit better for me, and I am saving Matt and Nadiya.”
Anton Du Beke locked in a third vote for Adams and Widdrington, meaning they had received the majority of the vote and would be leaving the competition.
Du Beke said: “Well it wasn’t a vintage dance-off, and I know exactly how they feel and I’ve been in that position many times myself and I think if you had the chance you would like to go again, both of you.
“There were a lot of mistakes for both couples, I felt that one couple lost performance as well, and because of that I would like to save Matt and Nadiya.”
After their already confirmed exit, head judge Shirley Ballas revealed that she would have saved Adams and Widdrington.
When asked if she agreed with her fellow judges, Ballas said: “I didn’t, I thought due to a little better quality, I would have saved Kaye and Kai.”
When asked by host Tess Daly about her time on the show, Adams said: “It was the right result and I did make mistakes, and when it comes to that high-pressured situation that’s what happens.
“So I am delighted for Matt and Nadiya, the only person I am just sorry for is this wonderful man (Widdrington), who has just been so brilliant…
“It was a hell of a lot of fun, I said my ambition was to learn to love to dance, and actually I have seen a whole new side to myself, it’s opened a little door.
“It’s been a wonderful experience and to spend time with such talented people who love the show so much has been a joy.”
Sunday evening’s results show also saw the Strictly professional dancers perform an energetic routine to a medley of Need You Tonight by INXS and About Damn Time by Lizzo, as well as a performance from singer Robbie Williams.